草业科学2012，Vol.29Issue(9)：1477-1481,5.
夏枯草提取物的抗氧化活性
Antioxidant activity of Prunella vulgaris extracts
摘要
Abstract
In the present study, we aimed to investigate the antioxidant activities of Prunella vulgaris in different extracts, which would provide theoretical basis for further research. The powder of P. vulgaris was extracted with 70% ethanol （in water, V/V） using ultrasonic extraction, and then the filtrate was extracted followed with ethyl acetate, n-butanol and water at equal volume. The antioxidant activities of different extracts were evaluated and BHT was used as a positive control. The results showed that the extracts of P. vulgaris have great antioxidant activity. Scavenging abilities on DPPH · of the extracts and BHT were in descending order： ethyl acetate〉n-butanol〉BHT〉water. Scavenging abilities on · OH of the extracts and BHT were in descending order： BHT〉ethyl acetate〉n-butanol〉water. Scavenging abilities on O2- · of the extracts and BHT were in descending order： ethyl acetate〉water〉BHT n-butanol. Reducing power of the extracts were in descending order： BHT〉ethyl acetate〉n-butanol〉water. The ethyl acetate extract of P. vulgaris had a strong antioxidant activity.关键词
夏枯草/抗氧化活性/自由基Key words
Prunella vulgaris/antioxidant activity/free radical分类
农业科技引用本文复制引用
张淼,董宝婧,苗芳,周乐..夏枯草提取物的抗氧化活性[J].草业科学,2012,29(9):1477-1481,5.基金项目
基金项目：国家自然科学基金项目 （）
